How to Change Your 2024 Mazda CX-5 2.5T Oil — DIY Guide

I've always liked the CX-5 2.5T because it drives sharper than most crossovers and still keeps the basic maintenance reasonable. The 2024 model is no different. The job itself is straightforward, but this is a turbo Mazda, so I don't treat the oil spec like a suggestion.

Dealer pricing usually lands around $110-$150 for this one. I can do it myself for about $45-$60 and know the turbo got clean oil on time.

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Parts & Tools

Item	OEM / Spec	Detail
Oil filter	Mazda PE01-14-302A9A	OEM oil filter
Drain plug washer	Mazda 9YA0-21-100	Crush washer
Motor oil	0W-20 full synthetic	API SP / GF-6A
Capacity	5.7 qt (5.4 L) with filter	2.5L turbocharged SKYACTIV-G
Drain plug torque	30 lb-ft (41 Nm)	17mm drain plug

Additional tools: 17mm socket, oil filter wrench if needed, drain pan, funnel, torque wrench, ramps or a jack with stands, tool for the undertray hardware.

Oil note: Mazda specifies 0W-20 full synthetic on the 2.5T. With a turbocharged direct-injection engine, I don't improvise the viscosity just because somebody on a forum likes a thicker bottle.

Filter note: The PE01-14-302A9A filter is easy enough to source that I prefer staying with a known-good filter and moving on with my day.

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DIY vs. Shop Cost

Item	DIY Cost	Shop Cost
0W-20 full synthetic (6 qt)	$35-$45	—
Mazda PE01-14-302A9A filter	$8-$15	—
Drain plug washer	$1-$2	—
Total parts	~$44-$62	—
Labor	$0	$70-$105
Total	~$44-$62	$114-$167

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Step-by-Step Oil Change

1. Warm the Engine

I run the CX-5 for about 4 minutes, then let it sit a few minutes before lifting it. Warm oil drains better, and turbo engines benefit from getting the oil moving before you pull the plug.

2. Remove the Undertray

Lift the vehicle safely and remove the undertray hardware so you have clean access to the oil pan and filter area. I always keep the fasteners organized because Mazda loves using just enough of them to be annoying if one disappears.

3. Drain the Oil

Place the drain pan under the oil pan and remove the 17mm drain plug. Let it drain fully. With 5.7 quarts in the system, I give it a solid 8 minutes.

Remove and discard the old 9YA0-21-100 crush washer.

4. Replace the Filter

Remove the old PE01-14-302A9A filter, clean the sealing surface, verify the old gasket came off, and install the new filter with a lightly oiled gasket.

5. Reinstall the Drain Plug

Install a new crush washer, thread the plug in by hand, and torque it to 30 lb-ft (41 Nm).

6. Refill with Oil

I start with 5.2 quarts, run the engine for about a minute, shut it off, wait 5 minutes, then check the dipstick and top off. Final capacity is 5.7 quarts with filter.

I don't dump the whole amount in at once on a turbo engine and hope for the best.

7. Check for Leaks

Inspect the drain plug and filter area with the engine idling. Then shut it off and do a final level check after the oil settles.

8. Reinstall the Undertray and Reset the Monitor

Reinstall the undertray and reset the oil life monitor through Mazda's vehicle status menu.

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CX-5 2.5T Notes That Matter

1. Turbo engines reward fresh oil, not optimism: That's the maintenance strategy.
2. 5.7 quarts means top off carefully: Use the dipstick.
3. Replace the crush washer every time: Cheap part, common leak point, easy decision.

If you want the year-prior reference, the 2023 Mazda CX-5 2.5T oil change guide covers the same engine family. If you want the simple home-garage process first, read how to do an oil change at home.

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If you want the full CX-5 maintenance picture instead of one spec at a time, check OwnerDrop's plans.